POSITIONS AND WIDTHS OF O$sup 17$ LEVELS FROM 4- TO 6-Mev EXCITATION

Journal Article · Fri Nov 15 04:00:00 EST 1957 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.108.1007· OSTI ID:4347389

Browne, C P

The O/sup 16/(d,p)O/sup 17/reaction was used to measure the positions and widths of O/sup 17/ levels from 4- to 6-Mev excitation. Proton spectra were obtained at high resolution with a broad-range spectrograph. This instrument accurately measured the widths and shapes of the energy distributions of the proton groups arising from the wider levels. Disagreements among other experiments concerning the O/sup 17/ levels are explained in terms of the large difference in level widths. A compnrison of these directly measured widths is made with those obtained from neutron scattering experiments. The observed shape of the energy distribution is that predicted by resonance theory. The 0.87-Mev level is found to be single rather than double as recently suggested. Excitation energies obtained (in Mev) are 0.871 plus or minus 0.004, 3.055 plus or minus 0.004, 3.846 plus or minus 0.005, 4.553 plus or minus 0.006, 5.083 plus or minus 0.0l0, 5.215 plus or minus 0.005, 5.378 plus or minus 0.007, 5.695 plus or minus 0.005, 5.731 plus or minus 0.005, 5.866 plus or minus 0.005, 5.94 plus or minus 0.015. Widths of levels 4, 5, 7, and 11 are (in kev) 40 plus or minus 5, 95 plus or minus 5, 28 plus or minus 7, and 23 plus or minus 10, respectively. The other levels have widths less than 8 kev. (auth)

• Research Organization: Massachusetts Inst. of Tech., Cambridge
• NSA Number: NSA-12-003178
• OSTI ID: 4347389
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 108; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

DEUTERON BEAMS
DISTRIBUTION
ENERGY
ENERGY LEVELS
EXCITATION
HALF- LIFE
LIFETIME
MEASURED VALUES
NEUTRONS
NUCLEAR REACTIONS
NUCLEAR THEORY
OXYGEN 16
OXYGEN 17
PHYSICS
PROTONS
RESOLUTION
RESONANCE
SCATTERING
SPECTRA
SPECTROMETERS
WIDTH